The research is focused on the characterization of matrix and filler adhesion, interfacial modifier effects on matrix crystalline formation with filler, depending on the modification strategies. Natural fibers filled LLDPE composites from modified by additives hemp fibers and using modified matrix were prepared by two rolls mill, cooled at room temperature and broken into smaller pieces. Atomic force microscopy (Bruker Dimension Edge instrument) was used for composite components interface structure investigation, samples were prepared from melt fraction.